{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "The introduction of adjuvant systemic therapy led to a significant improvement in post - surgical survival and a reduction in disease relapse , especially in women with early BC and those with ER + tumors , who may receive ET alone or in combination with cytotoxic therapy ."}
{"Chemical": []}